theme.c

/******************************************************************************
 *
 * theme.c - slurm theme engine
 *
 ******************************************************************************
 * $Id: theme.c,v 1.5 2004/09/28 14:23:02 hscholz Exp $
 *****************************************************************************/

#ifndef _THEME_C
#define _THEME_C

/******************************************************************************
 *
 * theme_setdefault()
 *
 * set default theme
 *
 *****************************************************************************/

void theme_setdefault(theme * t)
{
    if (t == NULL)
        error(ERR_FATAL, "theme_setdefault() received NULL pointer");

    t->background = COLOR_TRANSPARENT;
    t->rx = COLOR_GREEN;
    t->tx = COLOR_RED;
    t->text = COLOR_WHITE;
    t->var = COLOR_WHITE;
    t->title = COLOR_WHITE;
    t->rx_attrib = COL_BOLD;
    t->tx_attrib = COL_BOLD;
    t->text_attrib = COL_NORMAL;
    t->var_attrib = COL_BOLD;
    t->title_attrib = COL_BOLD;
    t->complete = E_ALL;
}

/******************************************************************************
 *
 * theme_readfile()
 *
 * read color definitions from the given file and store in theme struct
 *
 *****************************************************************************/

int theme_readfile(theme * t, char *name)
{
    FILE *f;
    char buf[BUFSIZ + 1];
    char filename[BUFSIZ + 1];
    char *search_paths[3];
    char *p, *val, *key;
    int iter;
    char pref[sizeof(INSTALL_PREFIX)+15];

    strcpy(pref, INSTALL_PREFIX);

    t->complete = E_NULL;

    /* search for the theme:
     *  - in the local directory
     *  - in ~/.slurm
     *  - in /usr/local/share/slurm
     *    (make this /usr/share/slurm for Debian systems by specifing
     *     -D__Debian__)
     */
    search_paths[0] = ".";      /* local directory */
    search_paths[1] = strcat(getenv("HOME"), "/.slurm");        /* $HOME/.slurm/ */
    search_paths[2] = strcat(pref, "/share/slurm");    /* search in $PREFIX/share/slurm/ */

    for (iter = 0; iter <= 2; iter++) {
        bzero(&filename, BUFSIZ);
        snprintf(filename, BUFSIZ, "%s/%s.theme", search_paths[iter],
                 name);

        if ((f = fopen(filename, "r")) != NULL) {
            /* found the theme; leave the loop */
            break;
        }
    }

    /* lets see if we found the theme */
    if ((f = fopen(filename, "r")) == NULL) {
        error(ERR_FATAL, "cannot find theme '%s'", name);
    }


    while (fgets(buf, BUFSIZ, f) != NULL) {
        if (!strncmp(buf, "#", 1))
            continue;           /* comment */
        p = buf;
        while (isspace((int) *p) && (*p + 1 != '\0'))
            p++;
        key = p;
        while (isalpha((int) *p) && (*p + 1 != '\0'))
            p++;
        if (isspace((int) *p)) {
            *p++ = '\0';
            while (isspace((int) *p) && (*p + 1 != '\0'))
                p++;
            if (*p != '=')
                continue;
            p++;
            while (isspace((int) *p) && (*p + 1 != '\0'))
                p++;
        } else if (*p == '=') {
            *p++ = '\0';
            while (isspace((int) *p) && (*p + 1 != '\0'))
                p++;
        } else
            continue;
        val = p;
        while (isalpha((int) *p) && (*p + 1 != '\0'))
            p++;
        *p++ = '\0';

        switch (theme_mapkey(key)) {
        case E_BACKGROUND:
            t->background = theme_mapcolor(val);
            t->complete |= E_BACKGROUND;
            break;
        case E_RX:
            t->rx = theme_mapcolor(val);
            t->complete |= E_RX;
            break;
        case E_TX:
            t->tx = theme_mapcolor(val);
            t->complete |= E_TX;
            break;
        case E_TEXT:
            t->text = theme_mapcolor(val);
            t->complete |= E_TEXT;
            break;
        case E_TITLE:
            t->title = theme_mapcolor(val);
            t->complete |= E_TITLE;
            break;
        case E_TEXTVAR:
            t->var = theme_mapcolor(val);
            t->complete |= E_TEXTVAR;
            break;
        case E_RXATTR:
            t->rx_attrib = theme_mapattrib(val);
            t->complete |= E_RXATTR;
            break;
        case E_TXATTR:
            t->tx_attrib = theme_mapattrib(val);
            t->complete |= E_TXATTR;
            break;
        case E_TEXTATTR:
            t->text_attrib = theme_mapattrib(val);
            t->complete |= E_TEXTATTR;
            break;
        case E_TEXTVARATTR:
            t->var_attrib = theme_mapattrib(val);
            t->complete |= E_TEXTVARATTR;
            break;
        case E_TITLEATTR:
            t->title_attrib = theme_mapattrib(val);
            t->complete |= E_TITLEATTR;
            break;
        default:
            error(ERR_WARNING, "unknown key '%s' in theme '%s'",
                  key, filename);
        }
    }
    fclose(f);
    return (t->complete == E_ALL) ? 1 : 0;
}

/******************************************************************************
 *
 * theme_mapattrib()
 *
 * map entity attribute to coresponding curses attribute
 *
 *****************************************************************************/

int theme_mapattrib(char *str)
{
    int val = COL_BOLD;
    char buf[32];
    int i;

    if (strlen(str) > 31)
        return val;
    bzero(&buf, 31);
    for (i = 0; i < strlen(str); i++)
        buf[i] = toupper((int) str[i]);
    buf[i + 1] = '\0';

    if (!strcmp(buf, "BOLD"))
        val = COL_BOLD;
    else if (!strcmp(buf, "NORMAL"))
        val = COL_NORMAL;
    else if (!strcmp(buf, "DIM"))
        val = COL_DIM;

    return val;
}

/******************************************************************************
 *
 * theme_mapcolor()
 *
 * map color name to coresponding curses color name
 *
 *****************************************************************************/

int theme_mapcolor(char *str)
{
    int val = COLOR_GREEN;
    char buf[32];
    int i;

    if (strlen(str) > 31)
        return val;
    bzero(&buf, 31);
    for (i = 0; i < strlen(str); i++)
        buf[i] = toupper((int) str[i]);
    buf[i + 1] = '\0';

    if (!strcmp(buf, "BLACK"))
        val = COLOR_BLACK;
    else if (!strcmp(buf, "RED"))
        val = COLOR_RED;
    else if (!strcmp(buf, "GREEN"))
        val = COLOR_GREEN;
    else if (!strcmp(buf, "YELLOW"))
        val = COLOR_YELLOW;
    else if (!strcmp(buf, "BLUE"))
        val = COLOR_BLUE;
    else if (!strcmp(buf, "MAGENTA"))
        val = COLOR_MAGENTA;
    else if (!strcmp(buf, "CYAN"))
        val = COLOR_CYAN;
    else if (!strcmp(buf, "WHITE"))
        val = COLOR_WHITE;
    else if (!strcmp(buf, "TRANSPARENT"))
        val = COLOR_TRANSPARENT;

    return val;
}

/******************************************************************************
 *
 * theme_mapkey()
 *
 * map entity name to internal name
 *
 *****************************************************************************/

int theme_mapkey(char *str)
{
    int e = 0;
    char buf[32];
    int i;

    if (strlen(str) > 31)
        return e;
    bzero(&buf, 31);
    for (i = 0; i < strlen(str); i++)
        buf[i] = toupper((int) str[i]);
    buf[i + 1] = '\0';

    if (!strcmp(buf, "BACKGROUND"))
        e = E_BACKGROUND;
    else if (!strcmp(buf, "RX"))
        e = E_RX;
    else if (!strcmp(buf, "TX"))
        e = E_TX;
    else if (!strcmp(buf, "TEXT"))
        e = E_TEXT;
    else if (!strcmp(buf, "TITLE"))
        e = E_TITLE;
    else if (!strcmp(buf, "TEXTVAR"))
        e = E_TEXTVAR;
    else if (!strcmp(buf, "RXATTR"))
        e = E_RXATTR;
    else if (!strcmp(buf, "TXATTR"))
        e = E_TXATTR;
    else if (!strcmp(buf, "TEXTATTR"))
        e = E_TEXTATTR;
    else if (!strcmp(buf, "TEXTVARATTR"))
        e = E_TEXTVARATTR;
    else if (!strcmp(buf, "TITLEATTR"))
        e = E_TITLEATTR;
    return e;
}
#endif